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Transparent rubber modified styrene resin

A technology of styrene-based resin and transparent rubber, which is applied in the field of preparation of transparent rubber-modified styrene-based resin, can solve the problems of not being able to meet high impact resistance, and achieve the effect of good transparency and good impact resistance

Active Publication Date: 2016-09-21
CHI MEI CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can improve the transparency of the resin, it cannot meet the needs of high impact resistance

Method used

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  • Transparent rubber modified styrene resin
  • Transparent rubber modified styrene resin
  • Transparent rubber modified styrene resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] 13 parts by weight of rubbery copolymer, 32.2 parts by weight of styrene monomer, 52.2 parts by weight of methyl methacrylate monomer, 2.6 parts by weight of acrylonitrile monomer, 30 parts by weight of ethylbenzene, 1,1-di-peroxide 1290 parts by weight of tert-butyl-3,3,5-trimethylcyclohexane and 1500 parts by weight of tert-dodecylmercaptan were uniformly mixed to form a raw material mixed solution. Wherein, the rubbery copolymer is a block copolymer with increasing composition, and the weight ratio of styrene and butadiene is 25 / 75. The raw material mixed solution was continuously pumped at a flow rate of 35 kg / hr to a continuous polymerization device in which four complete mixing type continuous stirring reactors (each with a capacity of 40 liters) were connected in series. Among them, the reaction temperature of the first reactor is controlled at 99°C, the reaction temperature of the second reactor is controlled at 105°C, the reaction temperature of the third react...

Embodiment 2 to 4 and comparative example 1 to 4

[0079] The polymerization reaction conditions and preparation methods of Examples 2 to 4 and Comparative Examples 2 and 3 are roughly the same as those of Example 1, except for the composition and component content ratio of the raw material mixed solution, and the operating temperature of devolatilization treatment and extrusion treatment .

[0080] The polymerization reaction conditions and preparation methods of Comparative Examples 1 and 4 are roughly the same as those of Example 1, except for the composition and content ratio of the raw material mixed solution, and the temperature of devolatilization treatment, Comparative Examples 1 and 4 did not carry out extrusion treatment.

[0081] The compositions and content ratios of the raw material mixed solutions of Examples 2 to 4 and Comparative Examples 1 to 4 are described in Table 1 in detail. The characteristics of each component in the preparation process of Examples 2 to 4 and Comparative Examples 1 to 4 are respectively...

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Abstract

The present invention relates to transparent rubber denatured syrene resin. The transparent rubber denatured syrene resin comprises a dispersed phase of a rubber particle formed by a rubber-like copolymer (A) and a continuous phase composed of a copolymer (B); wherein the weight average particle diameter of the rubber particle in the dispersed phase is within the range from 0.25[mu]m to 0.6[mu]m, the particle size distribution width thereof is within the range from 1.2 to 2.1, the swelling index is within the range from 7.5 to 17, and the numerical value obtained by multiplying the particle size distribution width by the swelling index is within the range from 10 to 21; by taking the weight of the copolymer (B) in the continuous phase as the 100% by weight, the copolymer (B) comprises 10% to 49% by weight of syrene monomeric unit, 50% to 80% by weight of (methyl)acrylate monomeric unit, and 1% to 10% by weight of acrylonitrile monomeric unit.

Description

technical field [0001] The invention relates to a preparation method of a transparent rubber-modified styrene-based resin, in particular to a preparation method of a transparent rubber-modified styrene-based resin with good transparency and good impact resistance. Background technique [0002] Rubber-modified styrene-based resin is a material with good strength and formability, so it is widely used in household goods such as food containers and packaging materials, home appliances, and OA equipment casings. However, general rubber-modified styrene-based resins are opaque and cannot be used in the manufacture of transparent products. In order to make rubber-modified styrene-based resins have both strength and transparency, and to make the resin meet other requirements for subsequent applications (such as chemical resistance) and other mechanical properties, etc.), the known method is to mix styrene-based resins with styrene-butadiene block copolymers, but this method cannot e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F287/00C08F212/08C08F220/14C08F220/44
Inventor 许瑞熙郭铭洲
Owner CHI MEI CORP